Panasonic UF-6300, Service Manual

Page: 152 / 274

152
Laser Unit (LSU) Error Detection
Motor ON
Tetragon Motor does not
reach constant speed
during wake up state.
Print Start
Tetragon Motor ON
Tetragon Motor Ready
nPMON nPMRY:ON
Normal Condition
OFF OFF OFF OFF
Normal Condition
3 sec
1.7 ms (400 dpi)
1.1 ms (600 dpi)
20 sec
nPRNT
nPMON
(CN69-3)
nPMRY
(CN69-2)
E31
nPMRY
Tetragon Motor does not
maintain constant speed.
Laser Timing Signal
E32
nPMRY
nVIDEO
(CN68-6)
Laser Timing Detection
nHSYNC
(CN68-2)
nPMRY does not go low for more than 2 sec during 3 sec to
20 sec after nPMON goes low.
nPMRY goes high 4 times during printing.
Can not detect
Laser Timing
E36
nHSYNC
(CN68-2)
nHSYNC timing signal is less than 60% of nVIDEO signal.